In a provocative paper, Galí (2014) showed that a policymaker who raises interest rates to rein in a potential bubble will only make a bubble bigger if one exists. This poses a challenge to advocates of lean-against-the-wind policies that call for raising interest rates to mitigate potential...

Financial contagion is modeled as an equilibrium phenomenon. Because liquidity preference shocks are imperfectly correlated across regions, banks hold interregional claims on other banks to provide insurance against liquidity preference shocks. When there is no aggregate uncertainty, the...

This discussion by Franklin Allen was published as an appendix to Jean Tirole's paper "Illiquidity and all its Friends" when the paper was originally published as FEEM Nota di Lavoro 78.2010, prior to its publication in the Journal of Economic Literature in 2011, where the appendix no longer...